Are ancient remedies any good? In scholarly circles the middle of the 20th Century, they didn’t seem to think so. For example:
‘Survey the mass of folly and credulity that makes up Anglo-Saxon leechdoms, it may be asked: “Is there any rational element here? Is the material based on anything that we may reasonably describe as experience?” The answer to both questions must be “Very little”.’ 
But in the last few days we have been reading
Two things that have caught my attention recently.
The first concerns trapping solar energy. One way to do this is to convert it directly into electricity with a solar panel, but one with much wider application would be to split water into oxygen and hydrogen, which can then be stored and transported.
News that will disappoint loads of children: